Home / 925,412.80-1,388,119.20-715,460.80

Finding the Fourth Proportional to 925,412.80, 1,388,119.20 and 715,460.80

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Solution

The fourth proportional to 925,412.80, 1,388,119.20 and 715,460.80 is: 1,073,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,412.80 : 1,388,119.20 = 715,460.80 : x
  2. Step 2: Convert to fraction form
    925,412.80/1,388,119.20 = 715,460.80/x
  3. Step 3: Cross multiply
    925,412.80x = 1,388,119.20 × 715,460.80
  4. Step 4: Simplify right side
    925,412.80x = 993,144,873,327.36
  5. Step 5: Solve for x
    x = 993,144,873,327.36/925,412.80
  6. Step 6: Final answer
    x = 1,073,191.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.